Pin roller for tobacco feeds



Nov. 20, 1934. 'J. w. LEARY 1,981,517

PIN ROLLER FOR TOBACCO FEEDS Filed Oct. 26, 1953 lNVE TO I Patented Nov. 20, 1934 UNITED STATES PATENT OFFICE American Machine &

Foundry Company, a corporation of New Jersey Application October 26, 1933, Serial No. 695,345

1 Claim.

This invention relates to picker rolls for tobacco feeds and carding machines, its main object being to provide a roller combining rigidity of construction with simplicity and cheapness would so enlarge the pinhole that the replacing pin would not be held securely.

To overcome this difiiculty, the roller, in the present invention, is made up of an outer casing of thin metal tubing with a built-up wooden reinforcement inside the tubing. The wood reinforcement may be a built-up wooden roller, slightly larger in diameter than the inside of the tubing and forced through the entire length of the tube or it may be constructed of several tapering staves assembled from opposite ends of the tube casing under considerable pressure.

After the wood reinforcement has been assembled and the roller trued up, holes for the required number of pins, and spaced to suit the particular material to be handled by the picker-roll, are drilled through the wall of the tubing. These holes are slightly larger in diameter than the pins and serve the purpose of locating the pins which are to be driven into the wood reinforcement.

In the accompanying drawing which forms a part of this specification and in which like characters of reference indicate the same or like parts:

Fig. a pin roller constructed in accordance with the l is a side elevation, partly in section, of

present invention;

Fig. Fig. 3 is an end view of the roller, showing 2 is a transverse section of roller;

the reinforcement built-up of tapering staves;

and

Fig.

4 is an enlarged scale section showing the ment.

In the best constructions contemplated the reinforcement is built up of tapered staves assembled in wedging relation within the tube or may consist of a wooden roller forced into the interior of the tube. These various means and parts may be widely varied in construction, for the particular device selected to illustrate the invention is but one of many possible concrete embodiments of the same. The invention, therefore, is not to be restricted to the specific construction shown and described.

In Fig. 2 sections 1, 2, 3, and 4 represent a built-up wooden reinforcement (four sections selected in this illustration) forming a wooden roller which is forced into the tube or casing 5.

In Fig. 3, sections 1a, 2a, 3a and 4a represent a wooden reinforcement built up of tapering staves (four staves selected in this illustration) assembled in pairs, 1a and 3a inserted from one end and 2a; and 4a inserted from the opposite end of the tubing in wedging relation with the staves 1a and 3a.

After tube 5 has been trued up it is drilled with the required number of holes, slightly larger in diameter than pins 6. These holes serve as an entry for pins 6, which are driven into the wood reinforcement, l, 2, 3, and 4 or 1a, 2a, 3a and 40., depending on what construction of reinforcement is used.

What is claimed is:

A picker roll comprising a wooden roller, a perforated metal tube enclosing and closely fitting the wooden roller to prevent warping thereof, and picker pins driven through the perforations of the metal tube into the wooden roller, said Wooden roller being built up of tapered staves assembled in wedging relation with one another.

JAMES W. LEARY. 

